[PATCH] fix devfs name for microcode driver

Seem like devfsd expects it in /dev/cpu/microcode and Debian users do
as well.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/i386/kernel/microcode.c

@@ -485,6 +485,7 @@ static struct file_operations microcode_fops = {
 static struct miscdevice microcode_dev = {
 	.minor		= MICROCODE_MINOR,
 	.name		= "microcode",
+	.devfs_name	= "cpu/microcode",
 	.fops		= &microcode_fops,
 };